| 摘要 |
An energy delivery device for treating tissue regions in a body conduit, such as a lung airway, may utilize one or more markers, rings, bands, or oth er visual indicators along an outer surface of the device body. The one or m ore visual indicators facilitate guidance of the device to effectively and e fficiently treat the tissue according to a predetermined axial treatment as well as measure extension of a distal portion of the device, tissue length, and/or treatment length. The predetermined axial treatment may be contiguous , overlapping, or intermittently spaced apart as determined by the marker sp acing distance. |
